Research Progress in Manufacturing and Machining of Metallic Materials

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Additive Manufacturing".

Deadline for manuscript submissions: 31 July 2025 | Viewed by 410

Special Issue Editor


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Guest Editor
School of Mechanical Engineering, Guangxi University, Nanning, Guangxi 530004, China
Interests: machining; automotive lightweight and safety design
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Special Issue Information

Dear Colleagues,

The manufacturing and machining of metallic materials is undergoing a transformative evolution, driven by the need for heightened efficiency, precision, and sustainability in modern industrial applications. This Special Issue brings together cutting-edge research that showcases the latest advancements and innovations in manufacturing techniques, machining processes, and material performance enhancement.

In recent years, advanced manufacturing techniques, particularly additive manufacturing, have reshaped traditional practices, enabling the fabrication of intricate geometries while significantly reducing material waste. Hybrid approaches that integrate additive and subtractive methods are emerging as powerful solutions to enhance production flexibility, accuracy, and material efficiency. This Issue features studies on these hybrid methods, highlighting their advantages in producing complex, high-performance components.

Traditional machining processes are also advancing, with the development of novel tool materials, specialized coatings, and improved lubrication strategies that extend tool life and minimize wear—critical improvements for machining hard-to-process alloys like titanium and superalloys. High-speed and high-precision machining techniques, supported by automation, robotics, and artificial intelligence, are further pushing the limits of what is achievable in material processing, especially in sectors like aerospace, automotive, and medical device manufacturing.

Sustainability remains a central focus in modern manufacturing, with research dedicated to energy-efficient practices, waste reduction, and the recycling of metallic materials. Contributions in this Issue underscore the importance of sustainable strategies in reducing the environmental impact of manufacturing while maintaining rigorous standards of quality and performance.

On the whole, then, this Special Issue aims to present a comprehensive view of the recent progress and emerging trends that are defining the future of metallic material manufacturing. We hope that it serves as an essential resource for researchers, engineers, and industry professionals dedicated to advancing the field and shaping the next generation of manufacturing and machining processes.

Dr. Guangxian Li
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Metals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • metallic materials
  • conventional machining
  • alternative machining
  • hybrid manufacturing
  • machinability
  • machining efficiency
  • surface finish
  • mechanical property

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Published Papers (1 paper)

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24 pages, 20598 KiB  
Article
Machinability of Drilling on Metallic Glass for Micro-Hole with Renewable Dielectric in an Electric Discharge Machining Process
by Liwei Li, Chen Cao, Yangjing Zhao, Shuo Sun, Jinguang Du and Wuyi Ming
Metals 2025, 15(4), 415; https://doi.org/10.3390/met15040415 - 7 Apr 2025
Viewed by 234
Abstract
Electric discharge machining (EDM) stands out for its ability to perform no-contact machining of materials with desired forms by multi-pulse discharges. In this investigation, the machinability of drilling on Ti56Zr18Cu12, metallic glass, for micro-hole is investigated with [...] Read more.
Electric discharge machining (EDM) stands out for its ability to perform no-contact machining of materials with desired forms by multi-pulse discharges. In this investigation, the machinability of drilling on Ti56Zr18Cu12, metallic glass, for micro-hole is investigated with renewable dielectrics in the EDM process. Machinability is investigated by examining performance indicators including material removal rate (MRR), overcut, edge deviation, and energy efficiency per volume (EEV) in relation to the process parameters, such as electrical and non-electrical parameters. The edges of the drilled holes are examined to investigate the micro-structural changes that occur in metallic glass as a result of micro-machining. The experimental results show that the maximal value of MRR of 0.0103 mm3/min is achieved when the pulse-on time of 30 μs and sunflower oil renewable dielectric is selected, and the minimum overcut and edge deviation of micro-hole drilling in Ti56Zr18Cu12 is 39.99 and 9.41 μm, respectively. Minimum overcut and edge deviation are obtained for colza oil, optimized by 38% and 70%, respectively, over the worst-case conditions. Multi-objective optimization on the basis of ratio analysis (MOORA) results in a 70% reduction in energy consumption of EEV compared to the conventional paraffin media process. In addition, a range of pulse-on time, pulse duty cycle, and renewable dielectric are identified using the MOORA technique while EDM drilling in metallic glass Ti56Zr18Cu12. Full article
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